what month and what year did dinosaur change their name to dinosaur jr? Was it right after You’re living all over me? I’ve seen a picture of a YLAOM lp with only dinosaur written on the cover.

I have the first lp from 85′ where there’s only written dinosaur on the cover, and not dinosaur jr. Does anyone have a clue of how many copies they pressed of that one? I figure it’s pretty hard to get that lp today.
And when was the first lp/cd out of print? <img>

thanks for helping!